# Limits

Every limit here reports itself rather than failing silently. These are the numbers to plan around.

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## Every limit

| **Limit**                           | **Value**                                | **What happens**                                                                                                                              |
| ----------------------------------- | ---------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------- |
| Macro height                        | 400 to 1000 px                           | Slider step 50, default 600\. A stored value outside the range is silently clamped, so a stored 300 renders as 400 and a stored 2000 as 1000. |
| Event macro title                   | 75 characters                            | \-                                                                                                                                            |
| Saved event name                    | 4 to 100 characters                      | A 3-character event title is rejected on save. The same 4-character floor is why .ics import skips very short titles.                         |
| Saved event description             | 255 characters                           | \-                                                                                                                                            |
| Saved event text                    | 500 characters                           | \-                                                                                                                                            |
| Saved event tag                     | 3 to 50 characters each                  | \-                                                                                                                                            |
| Saved event priority                | Lowest, low, medium, high, highest or no | \-                                                                                                                                            |
| Page-derived event title            | 255 characters                           | Titles taken from page text are truncated at 255 characters.                                                                                  |
| Specific pages source               | 25 pages                                 | The picker disables itself and shows "Limit reached".                                                                                         |
| Pages from search source            | 1 to 100 pages, default 25               | Dates on pages beyond the limit simply do not appear, with no warning.                                                                        |
| Pages where mentioned source        | 100 pages                                | \-                                                                                                                                            |
| Recently viewed source              | 25 pages                                 | \-                                                                                                                                            |
| Date search index                   | 200 unique start dates per page          | First date, last date and the mentioned-user list are always recorded; only the list of individual dates is capped.                           |
| Indexed date search results         | 100 pages                                | Also skipped entirely until the calendar has reported a real visible date range.                                                              |
| My Calendar sources                 | 5 calendars per user                     | \-                                                                                                                                            |
| Saved event reads                   | 100 rows per request                     | Large calendars are drained page by page, so they issue many round trips and show a load progress bar.                                        |
| Saved event fetch window            | Visible range plus 2 months either side  | \-                                                                                                                                            |
| iCal feed window                    | 30 days back to 365 days forward         | Events outside this rolling window never reach a subscriber's calendar app, even though they render fine inside Confluence.                   |
| iCal feed size                      | 1000 events                              | Beyond the cap, events are silently omitted from the feed.                                                                                    |
| iCal feed refresh hint              | 60 minutes                               | Advertised to the subscribing app; most apps treat it as a hint only.                                                                         |
| iCal feed edge cache                | 15 minutes fresh; a cached body up to 24 | \-                                                                                                                                            |
| iCal feed permission re-check       | once per hour                            | \-                                                                                                                                            |
| iCal feed refresh debounce          | 60 seconds                               | Edits coalesce into roughly one rebuild.                                                                                                      |
| Subscription lifetime backstop      | 400 days                                 | Abandoned subscription records expire automatically.                                                                                          |
| Subscriptions per calendar per user | 1 active link                            | Creating a new link revokes the previous one.                                                                                                 |
| Admin subscriptions table           | 25 rows per page shown; the underlying r | \-                                                                                                                                            |
| Static site calendar export         | 500 events                               | Beyond that the exported page prints "Only the first 500 events are included on static sites."                                                |
| Timezone search in the Event macro  | Type at least 2 characters; up to 50 res | \-                                                                                                                                            |

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## A few things worth knowing

* A limit that is reached is reported in the interface, not in a log you have to find.
* Limits are per site or per tenant depending on the limit. The table says which.
* Edition can change some of these.

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## Related

[What is not availableThe other constraints.](https://help.gocapable.com/calendar/what-is-not-available.html)

[AdministrationThe settings.](https://help.gocapable.com/calendar/administration.html)

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_They announce themselves. Read the message._